java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:56:33,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:56:33,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:56:33,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-08-05 10:56:33,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:56:33,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:56:33,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:56:33,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:56:33,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:56:33,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:56:33,088 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:56:33,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:56:33,092 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:56:33,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:56:33,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:56:33,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:56:33,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-05 10:56:33,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:56:33,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:56:33,107 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:56:33,134 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:56:33,147 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:56:33,150 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:56:33,152 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:56:33,152 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:56:33,153 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl [2019-08-05 10:56:33,153 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl' [2019-08-05 10:56:33,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:56:33,201 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:56:33,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:56:33,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:56:33,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:56:33,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:33" (1/1) ... [2019-08-05 10:56:33,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:33" (1/1) ... [2019-08-05 10:56:33,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:56:33,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:56:33,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:56:33,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:56:33,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:33" (1/1) ... [2019-08-05 10:56:33,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:33" (1/1) ... [2019-08-05 10:56:33,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:33" (1/1) ... [2019-08-05 10:56:33,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:33" (1/1) ... [2019-08-05 10:56:33,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:33" (1/1) ... [2019-08-05 10:56:33,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:33" (1/1) ... [2019-08-05 10:56:33,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:33" (1/1) ... [2019-08-05 10:56:33,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:56:33,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:56:33,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:56:33,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:56:33,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-08-05 10:56:33,349 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 10:56:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 10:56:33,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 10:56:33,662 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 10:56:33,663 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 10:56:33,664 INFO L202 PluginConnector]: Adding new model ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:56:33 BoogieIcfgContainer [2019-08-05 10:56:33,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:56:33,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:56:33,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:56:33,669 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:56:33,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:33" (1/2) ... [2019-08-05 10:56:33,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52811b45 and model type ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:56:33, skipping insertion in model container [2019-08-05 10:56:33,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:56:33" (2/2) ... [2019-08-05 10:56:33,672 INFO L109 eAbstractionObserver]: Analyzing ICFG ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl [2019-08-05 10:56:33,682 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:56:33,690 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 10:56:33,706 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 10:56:33,732 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:56:33,733 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:56:33,733 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:56:33,733 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:56:33,734 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:56:33,734 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:56:33,734 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:56:33,734 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:56:33,734 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:56:33,748 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2019-08-05 10:56:33,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 10:56:33,756 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:56:33,757 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 10:56:33,760 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:56:33,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:56:33,766 INFO L82 PathProgramCache]: Analyzing trace with hash 29955, now seen corresponding path program 1 times [2019-08-05 10:56:33,819 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:56:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:56:33,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2019-08-05 10:56:33,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:56:34,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:56:34,025 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:56:34,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 10:56:34,031 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 10:56:34,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 10:56:34,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:56:34,050 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2019-08-05 10:56:34,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:56:34,110 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-08-05 10:56:34,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 10:56:34,112 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-08-05 10:56:34,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:56:34,122 INFO L225 Difference]: With dead ends: 5 [2019-08-05 10:56:34,123 INFO L226 Difference]: Without dead ends: 5 [2019-08-05 10:56:34,125 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:56:34,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-08-05 10:56:34,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-08-05 10:56:34,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-08-05 10:56:34,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-08-05 10:56:34,157 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-08-05 10:56:34,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:56:34,158 INFO L475 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-08-05 10:56:34,158 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 10:56:34,158 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-08-05 10:56:34,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 10:56:34,159 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:56:34,159 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 10:56:34,159 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:56:34,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:56:34,160 INFO L82 PathProgramCache]: Analyzing trace with hash 930412, now seen corresponding path program 1 times [2019-08-05 10:56:34,161 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:56:34,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:56:34,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjunts are in the unsatisfiable core [2019-08-05 10:56:34,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:56:34,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:56:34,446 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:56:34,446 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-05 10:56:34,448 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 10:56:34,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 10:56:34,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:56:34,450 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2019-08-05 10:56:34,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:56:34,482 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2019-08-05 10:56:34,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 10:56:34,482 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-05 10:56:34,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:56:34,483 INFO L225 Difference]: With dead ends: 6 [2019-08-05 10:56:34,483 INFO L226 Difference]: Without dead ends: 6 [2019-08-05 10:56:34,484 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:56:34,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-08-05 10:56:34,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-08-05 10:56:34,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-08-05 10:56:34,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-08-05 10:56:34,486 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2019-08-05 10:56:34,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:56:34,486 INFO L475 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-08-05 10:56:34,487 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 10:56:34,487 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-08-05 10:56:34,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-08-05 10:56:34,488 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:56:34,488 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-08-05 10:56:34,488 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:56:34,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:56:34,489 INFO L82 PathProgramCache]: Analyzing trace with hash 28844579, now seen corresponding path program 2 times [2019-08-05 10:56:34,490 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:56:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:56:34,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 14 conjunts are in the unsatisfiable core [2019-08-05 10:56:34,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:56:34,624 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_6|], 2=[|v_#valid_7|]} [2019-08-05 10:56:34,651 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 10:56:34,664 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2019-08-05 10:56:34,665 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 10:56:34,760 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 10:56:34,819 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2019-08-05 10:56:34,820 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2019-08-05 10:56:34,929 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 17 [2019-08-05 10:56:34,930 INFO L567 ElimStorePlain]: treesize reduction 14, result has 60.0 percent of original size [2019-08-05 10:56:34,932 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 10:56:34,933 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:12 [2019-08-05 10:56:34,962 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-08-05 10:56:34,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:56:34,963 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 10:56:34,963 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 10:56:34,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 10:56:34,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:56:34,964 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 3 states. [2019-08-05 10:56:34,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:56:34,977 INFO L93 Difference]: Finished difference Result 4 states and 4 transitions. [2019-08-05 10:56:34,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 10:56:34,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-08-05 10:56:34,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:56:34,978 INFO L225 Difference]: With dead ends: 4 [2019-08-05 10:56:34,978 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 10:56:34,979 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:56:34,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 10:56:34,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 10:56:34,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 10:56:34,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 10:56:34,980 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-08-05 10:56:34,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:56:34,980 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 10:56:34,980 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 10:56:34,981 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 10:56:34,981 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 10:56:34,986 INFO L202 PluginConnector]: Adding new model ArraysWithLenghtAtDeclaration_false-valid-deref-write.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:56:34 BoogieIcfgContainer [2019-08-05 10:56:34,986 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:56:34,988 INFO L168 Benchmark]: Toolchain (without parser) took 1786.45 ms. Allocated memory was 134.2 MB in the beginning and 169.9 MB in the end (delta: 35.7 MB). Free memory was 111.6 MB in the beginning and 136.1 MB in the end (delta: -24.5 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-08-05 10:56:34,989 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 113.0 MB in the beginning and 112.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-05 10:56:34,990 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.39 ms. Allocated memory is still 134.2 MB. Free memory was 111.4 MB in the beginning and 109.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-08-05 10:56:34,991 INFO L168 Benchmark]: Boogie Preprocessor took 34.00 ms. Allocated memory is still 134.2 MB. Free memory was 109.6 MB in the beginning and 108.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-05 10:56:34,992 INFO L168 Benchmark]: RCFGBuilder took 387.08 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 96.2 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:56:34,993 INFO L168 Benchmark]: TraceAbstraction took 1320.34 ms. Allocated memory was 134.2 MB in the beginning and 169.9 MB in the end (delta: 35.7 MB). Free memory was 95.8 MB in the beginning and 136.1 MB in the end (delta: -40.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 10:56:34,997 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 113.0 MB in the beginning and 112.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 39.39 ms. Allocated memory is still 134.2 MB. Free memory was 111.4 MB in the beginning and 109.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.00 ms. Allocated memory is still 134.2 MB. Free memory was 109.6 MB in the beginning and 108.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 387.08 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 96.2 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1320.34 ms. Allocated memory was 134.2 MB in the beginning and 169.9 MB in the end (delta: 35.7 MB). Free memory was 95.8 MB in the beginning and 136.1 MB in the end (delta: -40.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 0 SDslu, 3 SDs, 0 SdLazy, 9 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 209 SizeOfPredicates, 19 NumberOfNonLiveVariables, 246 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 3/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...